tens of thousands of people filled the square today for pope benedict xvi last public appearance. he asked the faithful to pray for him and the cardinals that will choose his successor. when he stepped down tomorrow, he will be the first to do so in hundreds of years. >>> gun control heats up on capital bill. there was an assault weapons ban discussed today and a father whose son was killed in the newtown massacre. >> people say the overall number of deaths is relative small, but don't tell that to the people of columbine, or newtown. >> the december shooting left 20 children dead, and six educators debt. the senate judiciary committee headed by dianne feinstein could vote as soon as tomorrow. >>> the politics of pot, more than half of cal voters support it being sod and taxed like alcohol. 54% of the voters say yes to legalizing marijuana. we'll see if this poll translates into votes next year. promarijuana activist want to put the legalization issue on the ballot. >> parents are rallying in support of a fired gymnastic's teacher. she said she enforced a program policy and asked